Fully lined hinged lid automatic box



Sept. 13, 1955 R. w. NERENBERG FULLY LINED HINGED LID AUTOMATIC BOX 2Sheets-Sheet. l

1N V EN TOR.

Filed March l5, 1952 FIGJZ.

ATTORNEYS.

Sept 13, 1955 R. w. NERENBERG FULLY LINED HINGED LID AUTOMATIC Box 2Sheets-Sheet. 2

Filed March l5, 1952 JNVENTOR.

ATTORNEYS.

/fosfr h( afin/afec,

United States Pate-nt FULLY LINED lHINGED LID AUTOMATIC BOX Robert W.Nerenberg, Middletown, Ohio, assignor to The Interstate Folding BoxCompany, Middletown, Ohio, a corporation of Ohio Application March 15,1952, Serial No. 276,736

2 Claims. (Cl. 229-14) My invention relates to one-piece automatichinged lid boxes, particularly adapted for frozen foods, havingintegrally formed top and bottom parts including side and end wallswhich are adapted to be collapsed so that their inner faces lie adjacentthe inner faces of the bottom and top walls. Specifically, my inventionis directed to certain improvements in such boxes, particularly in theconstruction of f fully lined, liquid tight and grease proof boxes, andimproved means for maintaining, the ltop and bottom parts in the closedposition.

It is an object of the present invention to provide onepiece boxes whichare fully lined by means of a single sheet of lining material secured tothe blank Wh-ile in -flat condition, the liner sheet being so positionedthat it may be folded and erected concurrently with the box itselfwithout interfering with the formation of the box blank into aknocked-down box structure.

It is a further object of my invention to provide box structures inwhich the lining material covers less than the full area of the blank,and yet the structure when erected is fully lined and grease proofthroughout its interior. The construction thus provides all oftheadvantages of a fully lined blank While at the same time effecting asaving in `lining material as compared to lining the entire blank.

It is a further object of my invention to provide Vmeans for thepositive retention of the cover part of the filled box when the coverpart is placed over the bottom part, so that it will not spring openunder subsequent handling and shipping conditions, but at the same timecan be readily opened and reclosed when desired. Ancillary to thisobjective, it is a further object of my inventionto provide such meanswithout in any way interfering with the fully lined condition of the boxand without the lining in any way interfering with the cover retainingmeans.

It is a further object of my invention to provide the above features ina box construction in which the bottom part is completely liquid tightto the tops of the side and end walls making it particularly adaptablefor frozen foods and the like by obviating leakage and seepage duringfreezing and thawing.

These and other objects or my invention which will be set forthhereinafter or will be apparent to'one skilled in the art upon readingthese specifications, I accomplish by that certain construction andarrangement of parts of which I shall now describe an exemplaryembodiment. Reference is made to the drawings which form a part hereofand in which:

Figure l is a plan view of blank for my improved. box.

Figure 2 is also a plan view of the blank illustrating the lining sheetsecured in position on the blank.

Figures 3, 4 and 5 show in plan successive stages in the Y folding andgluing of the box.

Figure 6 is an isometric view illustrating the box in erected conditionwith the cover open.

Figure 7 is an isometric View of the box with the cover in closedcondition, and the flap in the cover partially ice lifted so as toexpose the contents of the box to view through the lining.

Figure 8 is a sectional view taken along the line 8-8 of Figure 7withthe cover of the box slightly ajar.

Figure 9 is a sectional view taken along theline 9-9 of Figure 7.

Figure l0 is a planview of a modified form of the blank illustrated inFigure l.

Figure ll shows the blank of Figure 10 with a lining sheet secured inposition on the blank.

Figures 12, 13, 14 and 15 show various stages in the folding and gluingofthe box illustrated in` Figures l0 and 1l.

Figure 16 isa isometric View illustrating the box of Figures l0 and llin-erected condition with the-cover open.

The lblank of Figure l presents a front wall 1, a bottom Wall 2, a rearWall 3,' a top wall 4, anda top front flap 5 in articulation in theorder named. Side walls 6.and7 are articulated to the sides of bottompanel 2, and :side flaps 8 and 9are articulated to the side edges of topwall 4. Webs ltlfand 11 join and are articulatedfto the side and rearwalls and the side flaps; and these webs have diagonal score lines asshown. The side flaps 8 and 9 are additionally provided with diagonalscore lines 12 and l13demarking triangular tabs 14 and15. The frontwallrl is provided with articulated end tabs 16 and 17 divided bydiagonal score lines 18 and 19 to provide triangular tabs 20, 20a, 21and 21a. The top front flap 5 has articulated end tabs22 and 23. Also,the front-wall lis provided with tongues 24 'and 25 cut from the endtabs 16 and `17, and the top front flap 5 has tongues 26 and 27 cut fromthe end tabs 22 and 23; If desired, the top 4 may include with a hingedcut out 28. which can be raised .to View the contents of the box withoutdisturbing the cover part.

As seen in Figure 2, a lining sheet 29'is secured to the inner surfaceofathe blank, preferably by stripsof adhesive, such asthose indicated at30 in Figure l. However, it willbe noted that the adhesive 30 coversfully the triangular tabs. 14 and 15 so as to securely bond the liningsheet to the triangular tabs, thereby preventing a loose connectionbetween tabs 14 and15 and end tabs 22 and 23"when,the latter areinfolded and secured to the former, as Will-be explained herein-l after.Also, it will be noted that the lining sheet covers less than the fullarea of the blank, terminating at one end of the blank adjacent the lineof articulation between the top panel 4 and the top frontflap 5, thusleaving the last mentioned flap and triangular tabs 22 and 23 uncovered.This is important since itvobviates the necessity of severing the linerbetween the side flaps 8 and 9 and the end tabs 22 and 23'when the blankis folded and glued, which would be necessary were a full length linerto be employed. The lining sheet is rectangular and completely free ofseams, cuts, or other interruptions which would destroy its imperforatecharacter. Preferably, the lining sheet is formed of moisture-proofcellophane or others of the non-fibrous films of commerce'which possessthe desired proofness and are additionally transparent; although it willbe obvious that any suitable material having the desired proofingcharacteristics may be employed if so desired.

The order of the steps in forming the finished, knocked-down box, andthe mechanism by which the steps are accomplished, are not limitationsupon my invention. Preferably, however, the parts of the blank are firstbrought to the infolded conditions illustrated in Figure 3, wherein theside walls 6 and 7'overlie the bottom Wall 2, the webs 10 and 11 overliethe rear-wall 3, the'side flaps 8 and 9 overlie the topwall 4, the endtabs 16 and 17 overlie the front wall 1 and the end tabs 22v and 23overlie the top Vfront flap 5; Attendant with the infolding of the partsjust mentioned, the triangular tabs 14 and 15 formed in the side aps Sand 9, respectively, are reversely folded along the diagonal score lines12'and 13 to overlie their respective side aps,-in the mannerillustrated in Figure 3. Withvthe blank in this condition, glue may bespotted on the triangular tabs and 21 and on end tabs 22 and 23, theglue spots being indicated by the shaded areas in Figure 3 of thedrawings.

The front wall 1 and the top front iiap 5 are next infolded, bringingthe structure into the condition shown in Figure 4. It will be notedthat the result of this folding will be to bring about the adhesion ofthe adhesive coated triangular tabs 20 and 21 to the ends of side walls6 and 7 respectively, and also, the adhesion of the adhesive coated endtabs 22 and 23 to the reversely folded, liner-covered triangular tabs 14and 15. As mentioned earlier, the liner is secured to the tabs 14 and 15using as large a glue area as possible so that the end tabs 22 and 23,when infolded and glued, will not pull the liner away from the tabs 13and 14, which would tend to be the case if only narrow stripes or smallspots of adhesive were applied to tabs 14 and 15. Pressure is, ofcourse, applied to the parts until the adhesive is set.

Figure 5 is an isometric view of the box so formed in its knocked-downcondition. From this condition, the box can be erected to the conditionillustrated in Figure 6, simply by the user grasping the infolded frontwall 1 and top front flap 5 and pulling upwardly and outwardly, therebyerecting the side and end members of both the bottom and cover parts, Aswill be seen in Figure 6, the bottom part of the box is fully linedthroughout, the cover part is lined excepting for the inner surface oftop front flap 5 and end tabs 22 and 23. These parts do not, however,interfere with the fully lined condition of the box, since in theerected and closed structure, they will lie to the outside of the frontand side walls of the bottom part and hence will not be exposed tothecontents of the box.

If the lining sheets were full length so as to cover the top front flap5 and the end tabs 22 and 23, it would be impossible to initially infoldthe parts to the conditionillustrated in Figure 3 without severing thelining between the side iiaps 8 and 9 and the end tabs 22 and 23. Such asevering operation-which is diicult to perform-is unnecessary in myconstruction, and as explained above, the elimination of the lining fromthe above named parts in no way affects the fully lined condition of theiinished structure. While a full length liner sheet could be used if thecover part of my box were formed in the same manner as the bottom part,there are a number of disadvantages in forming the cover part in suchmanner. If the cover part were so formed, there would be exposedtriangular portions lying to the outside of the side aps which wouldinterfere with printed matter running along the sides of the nished box,and these triangular portions would also constitute obstructions tendingto engage other boxes or articles with which the box might come intocontact. With the particular cover construction employed in my box, thecover side walls are completely unobstructed, and in addition, the endtabs 22 and 23 serve to maintain the cover part in erected condition.Thus, my construction enables me to use what is known as the Foldomaticconstruction for the cover without sacrificing the fully lined conditionof the box, and at the same time using a lesser amount of liningmaterial than would otherwise be necessary and also avoiding cutting ofthe lining sheet.

When the box of Figure 6 is closed to the position of Figure 7, the topfront ap 5 overlies the front wall 1 with the tongues 26 and 27 on thefront flap 5 in alignment with the tongues 24 and 25 on the front wall1, the latter tongues lying in the openings in the end tabs 22 and 23created by the displacement of the tongues 26 and 27. Thus, as can beseen in Figure 8, the tongue 26 will provide an opening 31 in end tab 22into which the tongue 24 of the bottom part will t. A like opening iscreated in end flap 23 by tongue 27. It is desirable to make the tongues24 and 25 on the front wall 1 slightly smaller than the tongues 26 and27 on the top front flap so that the openings produced by the latterpair of tongues will readily receive the tongues 24 and 25 on the frontwall. Also, when assembling the box, it is preferable to have theoutermost edges of the triangular tabs 14 and 15 lie along the base ofthe openings, such as the opening 31, to assure proper engagement of thetongues 24 and 25 with the cover part.

It will be apparent that if the lining sheet 29 covered the top frontflap 5 and the articulated end tabs 22 and 23, the openings formed bythe tongues 26 and 27 would be covered from the inside by the liningsheet and it would not be possible for the tongues 24 and 25 of thebottom part to engage in the openings in the end tabs 22 and 23 to lockthe parts in closed condition. Thus, again, it becomes important toterminate the lining sheet short of the top front flap and partsarticulated thereto. Otherwise, the desired locking effect could not beobtained.

In addition to fully lining the box, the lining sheet also provides aconvenient window for the box where the top wall 4 is provided with ahinged cut-out 28. As can be seen in Figures 7 and 8, the cut-out 2S maybe lifted to afford a view of the contents and then replaced.

In Figures 10 through 16 of the drawings, I have illustrated amodification of my invention in which the webs 1G and 11, which join andare articulated to the side walls, rear wall and side flaps, arereplaced by end tabs similar to the end tabs 16 and 17. Thus, withreference to Figure 10 of the drawings, wherein the parts correspondingto the parts of the blank illustrated in Figure 1 have been given likereference numerals for purpose of simplicity, end tabs 32 and 33 arearticulated to opposite ends of the rear wall 3, and the end tabs 32 and33 are diagonally scored at 34 and 35. As before, the lining sheet 29 issecured to the inner surface of the blank by stripes of adhesive 30, butin this instance the stripes of adhesive on the side flaps 8 and 9 arediagonally disposed, as at 36 and 37 to facilitate the opening of thelid portion of the erected box, as will be explained more fullyhereinafter. Also, as will evident from the drawings, the lining sheetis not adhered to the end flaps 34 and 35.

As seen in Figures 12 and 13, the parts of the blank are infolded andadhesively secured in the same manner as the blank illustrated inFigures 1 and 2. However, in order to secure the triangular tabproportions 38 and 39 (Figure 13) to the adjacent ends of side walls 6and 7, it is necessary to fold the infolded blank along the line ofarticulation between bottom wall 2 and rear wall 3. Before doing this,suitable spots of adhesive, as seen in Figures 13 and i4, are applied tothe side walls 6 and 7 in position to Contact *he triangular tabportions 3S and 39, whereupon the blank is infolded and assumes thecondition illustrated in Figure 15. This folding causes the triangulartabs 38 and 39 of ends tabs 32 and 33 to be adhesively secured to sidewalls 6 and 7.

The erected and open box is shown in Figure 16. 1t will be noted thatthe end tabs 32 and 33 secure the rear wall 3 tightly against the endsof side walls 6 and 7. This is of particular advantage where loosepieces, such as salted nuts, for example, are to be packed in the box.In order for the lid of the box to be fully opened, it is necessary toglue the lining sheet covering the side iiaps 8 and 9 along the diagonalglue line 36 and 37, rather than glue the lining up to the end edges ofthe side flaps. As will be evident from Figure 16, as the lid of the boxis opened, the portions of the lining lying beyond the diagonal gluestripes 36 and 37 will pull away from the side flaps 8 and 9 thusallowing the lid to swing fully open. If the lining were adhered to sideflaps all the way to their ends, there would not be sufficient freelining material in the folds of the end tabs 32 and 33 to permit the lidto be swung open. The necessary additional free lining material istherefore provided by freeing a portion of the lining covering the sidefiaps 8 and 9. This condition, however, in no way affects the fullylined condition of the box since in the erected structure, the sideflaps 8 and 9 lie to the outside of side walls 6 and 7.

It will be apparent that both of the lined structures described abovewill be completely liquid tight up to the tops of the walls due to thefact that a single, uncut sheet of lining material covers the bottom ofthe box and all of the walls. In addition, all interiorly exposedportions of the box are covered by the lining which, if of greaseproofcharacter, will render the entire interior of the structuregrease-proof.

It will be apparent to the skilled Worker in the art that modificationsin my invention may be made without departing from the spirit of theinvention as hereinbefore described. It will also be understood that myboxes may be varied as to both size and shape. The terms used herein andin the claims which follow, such as end walls, front and back Walls, andthe like, have been adopted as a matter of convenient terminology todistinguish walls from each other, but do not imply matters of relativedimensions.

Having described my invention in certain exemplary embodiments, what Iclaim as new and desire to secure by Letters Patent is:

1. In a one-piece knocked-down hinged lid box formed from a rectangularblank and fully internally lined with an imperforate rectangular linerconfined to the rectangu lar outline of the box blank and of lesser areathan the box blank, comprising a bottom part having a bottom panel,front and rear and side wall panels articulated to said bottom panel,and diagonally scored end tabs articulated to the ends of said frontwall panel, a cover part having a top member articulated to the rearwall panel of said bottom part, front and side wall members articulatedto said top wall member, said front wall member having end flapsarticulated to the ends thereof and said side wall members beingdiagonally scored at their ends adjacent said last named end flaps todefine triangular corner portions, foldable flap members articulated tothe ends of the rear panel of said bottom part for the adjacent endedges of the side walls of the bottom and top parts, and an imperforaterectangular sheet of lining material completely covering the innersurface of said bottom part and the top and side Wall members only ofsaid top part, the edges of said lining sheet coinciding on three sideswith the edges of the box blank and terminating on the fourth side alongthe line of articulation between the top wall member and the front wallmember of the top part, said blank being folded with the diagonallyscored end tabs of the bottom part in adhesive engagement with the sidewall panels of the bottom part and the end flaps of the cover part inadhesive engagement with the triangular corner portions of the coverside wall members, thereby providing a structure which, when the toppart is closed over the bottom part, presents planar external wallsurfaces and is fully internally lined employing the minimum rectangulararea of lining material.

2. In a one-piece knock-down hinged lid box formed from a rectangularblank and fully internally lined with an imperforate rectangular linerconfined to the rectangular outline of the box blank and of lesser areathan the said box blank, comprising a bottom part having a bottom panel,front and rear and side Wall panels articulated to the bottom panel,diagonally scored end tabs articulated to the ends of said front wallpanel, and tongues projecting outwardly from the ends of said front wallpanel and formed in said end tabs, a cover part having a top memberarticulated to the rear wall panel of said bottom part, front and sidewall members articulated to said top wall member, said front wall memberhaving end flaps articulated to the ends thereof and said side wallmembers being diagonally scored at their ends adjacent said last namedend flaps to define triangular corner portions, tongues projectingoutwardly from the ends of said front wall member, said tongues beingformed in said end flaps and defining, when said end flaps are foldedrelative to said front wall member, openings adapted to receive theprojecting tongues carried by the front wall panel of said bottom part,foldable connecting members articulated to the ends of the rear wall ofsaid bottom part for joining together the adjacent end edges of the sidewalls of said bottom and cover parts, and an imperforate rectangularsheet of lining material completely covering the inner surface of saidbottom part and the top and side wall members only of said top part, theedges of said lining sheet coinciding on three sides with the edges ofthe blank and terminating on the fourth side along the line ofarticulation between the top Wall member and the front Wall member ofsaid top part, said blank being folded with the diagonally scored endtabs of said bottom part in adhesive engagement with the side wallpanels of said bottom part and said end flaps of said cover part inadhesive engagement with the triangular corner portions of the side wallmembers of the cover part, thereby providing a structure which, when thetop part is closed over the bottom part, present planar exterior wallsurfaces and is fully internally lined using the minimum rectangulararea of lining material, and in which the tongues on the end of thefront wall panel of the bottom part engaged in the openings in the toppart without interfering with the fully lined condition of the box andwithout the lining interfering with the engagement of the tongues in theopenings.

References Cited in the file of this patent UNITED STATES PATENTS1,738,744 Walter Dec. 10, 1929 2,430,610 Guyer Nov. 11, 1947 2,493,338Buttery Jan. 3, 1950 2,503,798 Buttery Apr. 11, 1950 2,531,507 GoodyearNov. 28, 1950 2,544,565 Phillips Mar. 6, 1951 2,545,802 Bergstein Mar.20, 1951 2,568,170 Ringler Sept. 18, 1951 2,623,684 Collura Dec. 30,1952 FOREIGN PATENTS 5%,924 Great Britain Aug. 19, 1940

